20243240032 has 24 divisors (see below), whose sum is σ = 40780715976. Its totient is φ = 9886232832.

The previous prime is 20243240027. The next prime is 20243240041. The reversal of 20243240032 is 23004234202.

It is a super-2 number, since 2×20243240032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20243239985 and 20243240012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7354453 + ... + 7357204.

It is an arithmetic number, because the mean of its divisors is an integer number (1699196499).

Almost surely, 2^20243240032 is an apocalyptic number.

It is an amenable number.

20243240032 is an abundant number, since it is smaller than the sum of its proper divisors (20537475944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20243240032 is a wasteful number, since it uses less digits than its factorization.

20243240032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14711710 (or 14711702 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20243240032 its reverse (23004234202), we get a palindrome (43247474234).

The spelling of 20243240032 in words is "twenty billion, two hundred forty-three million, two hundred forty thousand, thirty-two".